When Selecting Join server immediately being sent to main menu

When attempting to join a multiplayer server I host on my home LAN on a separate machine (Server 2008 R2) I am immediately sent to the main menu and am unable to connect to the server until I close the client and relaunch it. After relaunching the client I have no issues connecting. There is no error message posted or log created. Checking the Server log I only see the usual server disconnect message that you would see when you typically disconnect from a server